A cup has 12.9 g of water at 24.8 °C. If 504 J are added to , what will the final temperature be?

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Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule